You might get the random ultra woke person who makes it impossible for others to have a conversation because they're just waiting to be triggered by anything anyone else says and find a way to spin every comment into an offence.
If anyone brings up politics then the meetup is over, at least for me.
I struck up a conversation with the person setting next to me at an outdoor cafe. He was probably 84-ish. He'd married someone from Japan he'd met there in the 60s. They had not had any children. I brought up the population issue in a light way (Japan's population is declining), something like making the joke that they didn't help Japan's population decline. He replied something like "anyone who tells you there's an underpopulation issue is lying. The planet has 8 billion people which is way too many". And that was when I knew I wasn't going to continue the conversation.
(not Japan but same topic: https://www.youtube.com/watch?v=Ufmu1WD2TSk)